package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.util.BCrypt;
import com.itheima.reggie.entity.Employee;
import com.itheima.reggie.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.apache.commons.lang.StringUtils;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;

@Slf4j
@RestController
@RequestMapping("/employee")
public class EmployeeController {
    @Autowired
    private EmployeeService employeeService;


    //登录功能
    @PostMapping("/login")
    public R<Employee> login(HttpServletRequest request, @RequestBody Employee employee) {
        //1、将页面提交的密码password进行BCrypt加密处理
        String password = employee.getPassword();//获取密码
//        String hashpw = BCrypt.hashpw("123456", BCrypt.gensalt());//对密码进行加密
//        System.out.println(hashpw);
        //2、根据页面提交的用户名username查询数据库
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(Employee::getUsername, employee.getUsername());
        Employee emp = employeeService.getOne(queryWrapper);

        //3、如果没有查询到则返回登录失败结果
        if (emp == null) {
            return R.error("登录失败");
        }

        //4、密码比对，如果不一致则返回登录失败结果
        boolean checkpw = BCrypt.checkpw(password, emp.getPassword());
        if (!checkpw) {
            return R.error("登录失败");
        }

        //5、查看员工状态，如果为已禁用状态，则返回员工已禁用结果
        if (emp.getStatus() == 0) {
            return R.error("账号已禁用");
        }

        //6、登录成功，将员工id存入Session并返回登录成功结果
        request.getSession().setAttribute("employee", emp.getId());
        return R.success(emp);
    }

    //退出功能
    @PostMapping("/logout")
    public R<String> logout(HttpServletRequest request) {
        //清理session中保存的员工id
        request.getSession().removeAttribute("employee");
        return R.success("退出成功");
    }

    //新增员工
    @PostMapping
    public R<String> save(HttpServletRequest request, @RequestBody Employee employee) {
        log.info("新增的员工信息为:{}", employee.toString());
        //设置初始密码并进行加密
        employee.setPassword(BCrypt.hashpw("123456", BCrypt.gensalt()));

//        employee.setCreateTime(LocalDateTime.now());
//        employee.setUpdateTime(LocalDateTime.now());
//
//        //获取当前登录用户的id
//        Long empId = (Long) request.getSession().getAttribute("employee");
//        employee.setCreateUser(empId);
//        employee.setUpdateUser(empId);

        employeeService.save(employee);
        return R.success("新增员工成功");
    }


    //分页
    @GetMapping("/page")
    public R<Page> page(int page, int pageSize, String name) {
        log.info("page = {},pageSize = {},name = {}", page, pageSize, name);

        //构造分页构造器
        Page pageInfo = new Page(page, pageSize);

        //构建条件构造器
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();

        //添加过滤条件
        queryWrapper.like(StringUtils.isNotEmpty(name), Employee::getName, name);

        //添加排序条件
        queryWrapper.orderByDesc(Employee::getUpdateTime);

        //执行查询
        employeeService.page(pageInfo, queryWrapper);
        return R.success(pageInfo);
    }


    //根据员工id查询
    @GetMapping("/id")
    public R<Employee> getById(@PathVariable Long id) {
        log.info("根据id查询员工信息...");
        Employee employee = employeeService.getById(id);
        if (employee != null){
            return R.success(employee);
        }
        return R.error("没有查询到员工信息");
    }


    //修改员工信息
    @PutMapping
    public R<String> update(HttpServletRequest request,@RequestBody Employee employee){
        log.info(employee.toString());

//        Long empId = (Long)request.getSession().getAttribute("employee");
//
//        employee.setUpdateTime(LocalDateTime.now());
//        employee.setUpdateUser(empId);
        employeeService.updateById(employee);

        return R.success("员工信息修改成功");
    }
}
